The objective of this conduct an analysis of the operational logistics activities of forest harvesting in eucalyptus plantations, determining the distribution of operating times, productivity, operational efficiency and availability of mechanical machines of forest harvesting, as well as providing increased productivity of operations, through reduction of unproductive time and propose a reduction in the costs of the activities of forest harvesting. The study was conducted in a company located in the extreme south of Bahia, evaluating the three modules of forest harvesting and the three work shifts. The machines used were two models of harvester and two models of forwarder. Reasearch data were obtained from the database of the company, for field collection and simulation of operating costs obtained in literature. Data collection was performed with use of a time study, characterized by the method of continuous tenses and multimomento. According to the results obtained in the study, one can conclude that the forwarder showed better performance indicators of availability mechanical and productivity in relation to Harvester, and the D model showed the best result among the two types of forwarder analyzed ( average operating cycle of 14 minutes and 37 seconds), among the Harvester Model A showed better yield (average of 30 seconds per tree). In the analysis of operational times, activities that represented the largest operating times were stopped for meals (average 69.41% of the times accessories), supply with diesel (average of 41.77% of the time auxiliary), waiting for parts and supplies for harvester (average 34.18% of unproductive time) and lack of front of service for the forwarder (average 41.83% of unproductive time) and maintenance regarding of base machine (average of 68.83% of the maintenance times) . Regarding modules, Module 3 showed the worst results with productive times (average of 61.12% of operating time). The first work shifts showed the worst results of operation for both machines (average of 60.02% to harvester and 56.65% for forwarder). Regarding the increase of productivity of the machines, it was possible by the elimination of unproductive, increase production of the harvester 11% and 24% for forwarder and also reduce about 5% in the cost of the wood for harvester and 10% of the final cost for forwarder. It has been found that there is an inefficient use of the potential of the forwarder load, thereby increasing the load box up to the weight limit recommended by the machine can increase the productivity of the machine by 54.7% in forest stands of low volume. And the analysis of productivity of the forwarder regarding distance mean extraction, conclude that up to 200 meters there is no significant difference extraction of productivity.